Creamy Chicken and Potato Chowder

Name: Creamy Chicken and Potato Chowder
Ingredients: 2 tablespoons 30g unsalted butter; 1 large yellow onion (diced); 3 carrots (peeled and diced); 1 stalk celery (diced); Coarse kosher salt (1/2 tsp to start and freshly ground black pepper, to taste); 4 cloves garlic (minced); 2 teaspoons fresh thyme leaves (chopped if large (about 3 sprigs or 1/2 teaspoon dried)); 3 tablespoons all-purpose flour; 4 cups 1L low or no sodium chicken broth; 2 cups 1/2 L milk (substitute up to 1 cup of half and half for a creamier taste); 1 pound red potatoes (about 4 medium, cut into 1/2 inch cubes (450g)); 4 ounces cream cheese (115g); 3 cups about 1lb. cooked chicken or turkey, shredded (450g); 1 small bunch (about 2 cups, 1/3lb., 150g chard leaves, stems discarded, chopped); 1 cup 5oz fresh or frozen corn (no need to defrost)